High-power boiler.



L. M. G. DELAUNAWBELLEVILLE. HIGH POWER BOILER.

APPLICATION FILED FEB. 26, 1908.

Patented Mar.8,19 10.

3 SHEETS-SHEET 1.

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L. M. G. DELAUNAY-BELLBVILLE HIGH. POWER BOILER.

APPLICATION FILED r312. 25, 1908.

Patented Mar. 8, 1910.

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LpM. G. DELAUNAY-BELLEVILLE. HIGH POWER BOILER. APPLIOATION FILED FEB. 25, 1908;

Patented ar.8,1910.

3 SHEETS-SHEET 3.

LOUIS MARIE GABRIEL DELAUNAY-BELLEVILLE, F PARIS, FRANCE.

HIGH-POWER BOILER.

Specification of Letters Patent.

Patented Mar. 8, 1910.

Application filed February 25, 1908. Serial No. 417,639.

* the Seine, France, have invented certain new and useful Improvements in High-Power Boilers, of which the following is a specification.

The invention has for its object a highpower boiler, constituted by a certain num ber of generators arranged in juxtaposition and having in common feed collectors and a steam collector.

The accompanying drawings show,by way of example, the application of the principle of the invention to Belleville generators, but this invention extends to all water tube generators comprising a transverse steam co1- lector at the upper part and a transversefeed collector at the lower part.

Figures 1 to 5 representaboiler composed of fourteen vaporizing elements of the Belleville type, a number which is larger than the exigencies of an eflioient operation would permit of attaining with the arrangements heretofore adopted; the novel arrangement consists in providing this boiler with an in termediate return and with two feed injectors. The assemblage thus comprises three water returns and three ejectors; one at each extremity and one in the middle of the boiler. Fig. 1 is a front elevation of the boiler. Fig. 2 is a sect-ion on the line X-X of Fig. 1. Fig. 3 is a front elevation of the steam collector. Fig. 4 is a section on the line YY of Fig. 3. Fig. 5 is a section on the line Z-Z of Fig. 4. Figs. 6 to 9 relate to a boiler composed of eighteen vaporizing elements of the Belleville type; in this case there are two intermediate water returns and three feed injectors. The assemblage comprises four water returns and four ejectors; one at each extremity and two intermediate. Fig. 6 is a front elevation of the boiler. Fig. 7 is a front elevation of the purifying collector. Fig. 8 is a section on the line TT of Fig. 7, and Fig. 9. is a section on the line VV of Fig. 8.

The water enters the boiler through one of the regulators F. One ofthese regulators is arranged at the right hand of the boiler the other at the left hand in communlcation with the adjacent elements. In the case of a very large boiler a third regulator may be mounted in communication with the middle elements of the boiler. The water issuing from one of the regulators F passes through the tubes 2 and passes into the feed collector G of the re-heater which extends throughout the entire width of the boiler. The water then enters the re-heaters E and then the hot water collector H arranged at the outlet from the re-heater. The elements G and E are not indispensable and may be omitted. On leaving H, the water passes through the tubes 33 to the injectors II which give access to the general steam collector B. There are as many feed injectors on this collector as there are assembled lengths. Each feed injector is in direct communication with the hot water collector H, or in default of a re-heater with a single collector such as G at which the force pipe of the two feed regulators terminates. On leaving the steam collector B,the water descends through the extreme returns LL and through the intermediate returns M.M which are fixed at the end of the sockets which carry the ferrules bb. These ferrules bb serve for assembling two adjacent lengths of the steam collector B; they may be of molded steel.

The returns L and M conduct the water into the feed collector K which distributes it between the vaporizing elements C arranged directly above the furnace 6. The steamis formed in the tubes of these elements. In cases in which the feed collector is divided, the return M is mounted upon a socket which places the two adjacent lengths of the collector K in communication.

By employing one or more intermediate returns, the feeding of water to the middle portions of the feed collector K and the generating elements is rendered more efficient, for in that case, the water has shorter paths to traverse from the respective returns M to the different parts of the collector K and the generating elements communicating therewith, as compared to those cases wherein the intermediate portions ofthe collector and of the generating elements are fed sole-1y from the ends or extremities of the collector. This arrangement is particularly advantageous by reason of the fact that the middle portions of the feed collector and of the vaporizing or generating elements are more highly heated than are the outer ends of these parts, the intermediate returns serving of the steam collector which is 'the steam collector, but

to conduct the water directly to-these highly heated portions and thus insure an even circulation of the water and uniform generation of steam.

In the case of marine boilers the ferrule b is provided with a median partition 7 (Figs. 3 and 4). In the case of rolling or pitching this partition forces the water in that part momentarily the highest to return to the central parts of the feed collector, instead of rushing to the lowest part of the steam collect-or whence it might enter the return leading to one extremity of the feedcollector and thus fail to enter an intermediate return leading to an intermediate portion of the feed collector. This partition is of no use in the case of generators arranged at a fixed station. It is not shown in Figs. 7 and 8 representing the boiler with 18 elements.

The vaporizing elements may be of any desired number in each of the lengths of as regards uniformity in the construction it is preferable that they should be the same number of elements for each length of the collector- The feed water is thus better distributed and more uniformly heated in contact with the steam and with the outlet of the vaporizing elements.

The steam which issues from the tubes C reaches the steam collector through the tubes 1 l. The steam supply tubes 1 are arranged as indicated in' Figs. 3 and 5. At the upper part of the reservoir B steam supply tubes 4 are situated. These tub-es are provided with valves 5. In the case of a very large boiler two steam supply valves 5 5 may be provided instead of one. The steam proceeds to the super-heating. tubes D and then leaves the boiler. In cases where there is no super-heater, its place may be occupied by the re-hea-ter or the steam collector is arranged immediately above the vaporizing tubes and the tubes 1 are dispensed with. There is however nothing arbitrary about the arrangements shown in the drawing.

If it is desired to construct a boiler of 24 vaporizing elements a steam purifier formed of three lengths each comprising eight elements may be employed. In this case, the boiler will have three feed injectors and two intermediate water returns. The purifying collector may also be constructed in four lengths of six elements; there are then four feed injectors and three intermediate water returns. Whatever the combination adopted may be it is essential that the boiler should be provided with at least two automatic feed regulators arranged at the two extremities of the facade and in communication with the adjacent elements.

It is the height of the apparent level which, by the intermediary of a float, regulates the aperture of the feed cock; now for a given quantity of water in the boiler the height of the level depends upon the activity of the fire. There may be an'appreciable difference between the intensity of the fire at the two extremities but each of the automatic feed regulators supplies on its side a quantity of water proportionate to the activity of the fire to which the corresponding elements are subjected. It may even be advantageous in the case of a very large boiler, to ar ange the third automatic feed regulator in the median part of the boiler. This auto-motor will regulate the feed appropriately for the fire to which the corresponding elements are subjected. The partial feeds thus obtained become merged in the steam purifier collector forming a composite feed which is suitable for the boiler as a whole.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I- declare that what I claim is:

1. A steam boiler comprising a steam collector divided by a partition into sections, a feed collector arranged below it, a steam generating element connected respectively to the said steam and feed collectors, returns connecting the ends of the steam and feed collectors respectively, and an intermediate return connecting the steam and feed collectors at points intermediate their respec tive ends, the inlet of the intermediate return being divided by said partition in the steam collector.

2. A steam boiler comprising a steam collector composed of a set of sectional lengths, afeed collector arranged below the steam collector, returns establishing communication between the ends of the steam and feed collectors respectively, intermediate returns communicating with the steam collector at the junction points between its sectional lengths thereby communicating with the adjacent lengths of the steam collector and connected to intermediate portions of the feed collector, a steam generating element communicating respectively with the steam and feed collectors and feed injectorscommunicating with the respective sectional lengths of the steam collector.

3. A steam boiler comprising a steam generating element, a sectional steam collector extending transversely at the upper portion of the boiler and communicating with the generating element, a feed collector also extending transversely of the boiler below the steam collector and communicating with the generating element, return pipes establishing communication between the respective ends and the intermediate portions of the steam and feed collectors, a pair of feed regulators arranged at the respective ends of the steam and feed collectors, and injectors connected to receive feed Water from the respective regulators and discharging 5 into the respectivesections of the steam collector.

In testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.

LOUIS MARIE GABRIEL DELAUNAY-BELLEVILLE. Witnesses:

H. C. COKE, EMILE KLOTZ. 

